* {
    margin: 0;
    padding: 0;
    /* css3盒子模型 */
    box-sizing: border-box;
}

em,
i {
    font-style: normal
}


/* 去掉li 的小圆点 */

li {
    list-style: none
}

img {
    /* border 0 照顾低版本浏览器 如果 图片外面包含了链接会有边框的问题 */
    border: 0;
    /* 取消图片底侧有空白缝隙的问题 */
    vertical-align: middle
}

button {
    /* 当我们鼠标经过button 按钮的时候，鼠标变成小手 */
    cursor: pointer
}

a {
    color: #666;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
    color: #c81623
}

a:visited {
    text-decoration: none;
}

button {
    /* "\5B8B\4F53" 就是宋体的意思 这样浏览器兼容性比较好 */
    font-family: Microsoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5B8B\4F53", sans-serif;
    border: 0;
    /* 去掉蓝色边框 */
    outline: none;
}

input {
    outline: none;
}

.w {
    width: 1200px;
    margin: 50px auto;
}

body {
    background: url(../imgs/bj2.jpg) no-repeat fixed;
    background-size: 100% 100%;
    color: #286090;
}

.style_red {
    color: #c81623;
}


/* 头部区域 */

.header {
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 80px;
    line-height: 80px;
    background: url(../imgs/bj1.jpg) no-repeat;
    background-size: cover;
    z-index: 9999;
}

.header p {
    float: left;
    margin-left: 50px;
    letter-spacing: 5px;
    color: #286090;
    font-size: 40px;
}

.header .logo {
    float: left;
    height: 80px;
    margin-left: 60px;
}

.header .logo a {
    display: block;
    width: 160px;
    height: 70px;
    margin-top: 1px;
    margin-left: 100px;
}

.header .logo a img {
    width: 100%;
    height: 100%;
}

.login {
    float: right;
    margin-right: 300px;
    color: #286090;
    font-size: 18px;
}

.upload {
    position: absolute;
    margin-left: 600px;
    margin-top: 10px;
}


/* 按钮部分 */

.btns {
    margin: 500px 0 0 300px;
}

.btn,
.btn:visited {
    width: 160px;
    height: 65px;
    margin-right: 80px;
    border: 0;
    outline: none;
    font-size: 40px;
    border-radius: 10px;
}

.btns a {
    text-decoration: none;
    outline: none;
    border: 0;
    color: white;
}


/* 底部部分 */

.footer {
    overflow: hidden;
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 25px;
    text-align: center;
    line-height: 25px;
    color: #fff;
    letter-spacing: 5px;
    background-image: linear-gradient(to right, #2abca5, #57c177, #76c456);
    background: url(../images/渐变.jpg) no-repeat;
    background-size: 100%;
    z-index: 888;
}